ISO TS 12104-2003 PDF

Full title and description

ISO/TS 12104:2003 — Road vehicles — Gearshift patterns — Manual transmissions with power-assisted gearchange and automatic transmissions with manual-gearshift mode. Technical Specification that defines recommended shift patterns and the relative positions of gear-select and manual-gearshift modes for applicable road vehicles (excluding motorcycles).

Abstract

ISO/TS 12104:2003 establishes standardized gearshift patterns for manual transmissions with power-assisted gearchange and for automatic transmissions that provide a manual-gearshift (M) mode. The document specifies how manual and gear-select modes should be arranged and the directional principles for manual-gearshift actions (fore/aft, left/right, up/down). It is intended to promote ergonomic consistency and reduce driver confusion by standardizing control layout for relevant vehicle classes.

General information

• Status: Withdrawn (ISO catalog shows the Technical Specification as withdrawn).
• Publication date: 2003-12 (December 2003).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.50 — Transmissions, suspensions (road vehicles).
• Edition / version: Technical Specification, Edition 1 (2003).
• Number of pages: 10 (published technical specification).

Scope

This Technical Specification applies to road vehicles (as defined in ISO 3833) except motorcycles. It covers recommended shift patterns for: (a) manual transmissions that use power-assisted gearchange and (b) automatic transmissions that include a manual-gearshift (M) mode. It specifies the relative location of gear-select mode and manual-gearshift mode, and gives principles for applying shift directions (fore/aft, left/right, up/down). It does not apply to manual transmissions that do not provide a +/- manual-gearshift mode, nor does it address displays or tell-tales.

Key topics and requirements

• Definition and vocabulary for gear modes: gear-select mode vs manual-gearshift mode (M mode).
• Standardized shift-direction principles for manual-gearshift operations (fore/aft, left/right, up/down) to promote ergonomic consistency.
• Specification of recommended physical relationship and location between gear-select controls and manual-gearshift controls.
• Guidance on indicating low gear(s) in manual-gearshift arrangements (informative annex on low-gear indication).
• Applicability limits: excludes motorcycles and transmissions without +/- manual-gearshift mode; excludes instrument displays and tell-tales.

Typical use and users

Automotive designers and ergonomists, vehicle controls engineers, OEM human-machine interface teams, vehicle system integrators, regulatory and standards bodies, and technical committees concerned with vehicle control layout and driver ergonomics. Also useful for test laboratories and suppliers of gearshift assemblies who need to align control layout with recognized ergonomics guidance.

Related standards

Standards that are relevant to or often used alongside ISO/TS 12104 include ISO 3833 (vehicle classification and definitions), ISO standards and technical reports on ergonomics and control direction-of-motion (for example ISO documents addressing hand-control direction-of-motion and control symbols), and regional/national standards addressing vehicle controls and labelling. Users should consult the ISO catalog and relevant ISO/TC 22 publications for the current set of related and successor documents.

Keywords

gearshift patterns, manual transmission, power-assisted gearchange, manual-gearshift mode, M mode, vehicle ergonomics, gear-select, control layout, road vehicles, shift direction

FAQ

Q: What is this standard?

A: ISO/TS 12104:2003 is a Technical Specification that provided recommended gearshift patterns and arrangement guidance for manual transmissions with power-assisted gearchange and automatic transmissions that include a manual-gearshift mode.

Q: What does it cover?

A: It covered the definitions of gear modes, recommended directional principles for manual-gearshift operation (fore/aft, left/right, up/down), and the relative location of gear-select and manual-gearshift controls for applicable road vehicles. It excluded motorcycles, transmissions without a +/- manual-gearshift mode, and displays/tell-tales.

Q: Who typically uses it?

A: Automotive OEM design and ergonomics teams, controls and human-machine interface engineers, parts suppliers (shift levers, paddles), regulators and standards committees, and test laboratories working on vehicle control layout and driver interaction.

Q: Is it current or superseded?

A: ISO/TS 12104:2003 is recorded in the ISO catalog as withdrawn. Some national/members' records indicate the withdrawal was recorded in 2014. Users should check the ISO catalog and current ISO/TC 22 publications to identify any newer standards or technical reports that address gearshift layout and ergonomics.

Q: Is it part of a series?

A: It was developed under ISO/TC 22 (Road vehicles) and relates thematically to other ISO documents on vehicle ergonomics, control direction-of-motion and signaling. It is a standalone Technical Specification rather than a numbered multi-part series, but it fits within the broader family of ISO road-vehicle ergonomics and control standards.

Q: What are the key keywords?

A: Gearshift patterns; manual transmission; power-assisted gearchange; manual-gearshift mode; M mode; gear-select; shift direction; vehicle ergonomics.